Craig
Member
Thought I'd make this easier to search. Please "like" the video while you are there.
Craig's Circle Technique: How to get striping, overlap lines and surface cleaner marks out of concrete:
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Tips and Tricks by Craig Harrison at Front 9 Restoration
1-855-803-1133
Makers of the World's Best Rust Remover, F9 BARC and other Professional Restoration Chemicals.
www.Front9Restoration.com
This video shows power washing and restoration companies how to remove the dreaded "overlap" marks, also known as striping or surface cleaner lines.
Overlap marks can come from a variety of means:
Clogged tips (usually just one), bad tips, just too much pressure altogether, mis-aligned tip, uneven spray bar, going too fast, others.
Clogged tips and bad tips are the #1 reasons in my opinion this happens. Concrete that is not up to spec happens a lot too. If concrete is weak it's easier to etch. Once in a while your spray bar will not be level because either it's worn, bad bearings, worn tires, not equal psi in the tires, etc.
Here are three ways to fix it:
1) Make sure tips are good and properly aligned. Pw it in the opposite direction, SLOWLY. Unfortunately this may only work sometimes because concrete may be etched too bad. But, it will look better, only it will leave light etch marks the other way and look like a cross cross. ..may or may not work. You'll have to try and see.
2) Use a surface cleaner and do SLOW CIRCLES left to right all the way across and then right to left, making sure to overlap at about 50% of the surface cleaner width. This is what this video shows. The technique will work better than the cross-cross and work MOST of the time. If concrete is etched too bad, you will have to go with #3 below.
3) F9 Efflorescence and Calcium Remover by Front 9 Restoration. This WILL take them out. Use F9 Efflo, spray on at 8:1 and broom surface until the foaming stops. Surface clean using the circle technique on the whole thing. Rinse off.
Craig's Circle Technique: How to get striping, overlap lines and surface cleaner marks out of concrete:
<strong>
Tips and Tricks by Craig Harrison at Front 9 Restoration
1-855-803-1133
Makers of the World's Best Rust Remover, F9 BARC and other Professional Restoration Chemicals.
www.Front9Restoration.com
This video shows power washing and restoration companies how to remove the dreaded "overlap" marks, also known as striping or surface cleaner lines.
Overlap marks can come from a variety of means:
Clogged tips (usually just one), bad tips, just too much pressure altogether, mis-aligned tip, uneven spray bar, going too fast, others.
Clogged tips and bad tips are the #1 reasons in my opinion this happens. Concrete that is not up to spec happens a lot too. If concrete is weak it's easier to etch. Once in a while your spray bar will not be level because either it's worn, bad bearings, worn tires, not equal psi in the tires, etc.
Here are three ways to fix it:
1) Make sure tips are good and properly aligned. Pw it in the opposite direction, SLOWLY. Unfortunately this may only work sometimes because concrete may be etched too bad. But, it will look better, only it will leave light etch marks the other way and look like a cross cross. ..may or may not work. You'll have to try and see.
2) Use a surface cleaner and do SLOW CIRCLES left to right all the way across and then right to left, making sure to overlap at about 50% of the surface cleaner width. This is what this video shows. The technique will work better than the cross-cross and work MOST of the time. If concrete is etched too bad, you will have to go with #3 below.
3) F9 Efflorescence and Calcium Remover by Front 9 Restoration. This WILL take them out. Use F9 Efflo, spray on at 8:1 and broom surface until the foaming stops. Surface clean using the circle technique on the whole thing. Rinse off.